Heptynedioic acid
[化] 庚炔二酸
🧩 词语组成解析
🗣️ 情景例句
I have many hobbies. I like almost all kinds of sports and I also like classical music.
我有很多爱好，喜欢各种运动，也喜欢古典音乐。
I'll walk you to the door.
我送你到门口。
They're cats.
是一些小猫。